Light fixture arm



FIG. 1 is a perspective view from below of a light fixture arm inaccordance with my design;

FIG. 2 is a side elevation view of the light fixture arm in accordancewith my design; and,

FIG. 3 is an enlarged side elevation elevation view of the light fixturearm in accordance with my design, the opposite side being a mirrorimage.

The broken lines showing environmental structure are for illustrativepurposes only and form no part of the claimed invention.

The ornamental design for a light fixture arm, as shown and described.